rsi_create return 16

[mooncake199809]

I am trying to establish a connection between RSI interface and KUKA KR_60, a KR_C4 controller.
I have set the Ip Address is shown below:
Smart-pad Ip address:
Windows 10 OS in a smart pad: 192.168.0.1
Not changed, and not safe to do so.
Smartpad virtual5 KLI: 172.31.1.147
Virtual 6: 192.168.1.121
Windows interface is selected.
Virtual 7 RSI: 192.168.2.121
Linux PC:
192.168.1.210 windows interface
192.168.2.210 RSI

When we run ros_rsi.src in pad, the rsi_create function returns 16
ret = RSI_CREATE("ros_rsi.rsi",CONTID,TRUE)
IF (ret <> RSIOK) THEN
HALT # Over here
ENDIF

What problem would cause this error? Thanks very much for any help!

[Erosaaaa]

I think the realte of rsi docment you don't check finish,maybe the robot address or robot port have any problem.